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  • 1975-1979  (1)
  • Organic Chemistry  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 319 (1977), S. 117-122 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Preparation of O-Substituted Esters of SugarsIn this paper the syntheses of 14 O-acetylated carbohydrate esters of different acids are described according to a new method. The esters are prepared by reaction of the acids with O-substituted halocarbohydrates, e. g. acetobromoglucose in the presence of amines, e. g. triethylamine. We have synthesized according to this procedure also the 2,3,4,6-tetra-O-acetyl-β-D-glucopyranosylesters of such instable acids like abscisic acid, 3-indoleacetic acid and gibberellic acid in yields of more than 50%.
    Notes: Es werden die Synthesen von 14 O-acetylierten Zuckerestern verschiedenster Säuren nach einem neuen Verfahren beschrieben. Die Darstellung erfolgt durch Umsetzung der Säuren mit O-substituierten Halogenzuckern, z. B. α-Acetobromglucose in Gegenwart eines Amins, z. B. Triäthylamin. Nach dem Verfahren gelang unter anderem die Darstellung der 2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosylester solch empfindlicher Säuren wie Abscisinsäure, 3-Indolylessigsäure und Gibberellinsäure in Ausbeuten von über 50%.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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